<%@ page language="java" import="java.util.*,java.sql.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'AddSubject2.jsp' starting page</title>
    
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">    
	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
	<meta http-equiv="description" content="This is my page">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

  </head>
  
  <body>
    <%	request.setCharacterEncoding("UTF-8");
	    String subjectname=request.getParameter("subjectname");
	    int classhour = Integer.parseInt(request.getParameter("classhour"));
	    int gradeid = Integer.parseInt(request.getParameter("gradeid"));
	    Class.forName("com.mysql.jdbc.Driver");
	    String url = "jdbc:mysql://localhost:3306/school";
	    Connection conn = DriverManager.getConnection(url, "root", "root");
	    String sql = "insert into `subject`(id,subjectname,classhour,gradeid) values (null,?,?,?)";
	    PreparedStatement st = conn.prepareStatement(sql);
	    st.setString(1,subjectname);
	    st.setInt(2,classhour);
	    st.setInt(3,gradeid);
	    st.executeUpdate();
	    out.println("<script>alert('添加成功！');history.go(-1);</script>");
	 %>
  </body>
</html>
